Reduced atherosclerosis lesion size, inflammatory response in miR-150 knockout mice via macrophage effects.

Journal of Lipid Research
Fu-Han GongZhi-Gang She

Abstract

Atherosclerosis is considered to be a chronic inflammatory disease that can lead to severe clinically important cardiovascular events. miR-150 is a small noncoding RNA that significantly enhances inflammatory responses by upregulating endothelial cell proliferation and migration, as well as intravascular environmental homeostasis. However, the exact role of miR-150 in atherosclerosis remains unknown. Here, we investigated the effect of miR-150 deficiency on atherosclerosis development. Using double-knockout (miR-150-/- and ApoE-/-) mice, we measured atherosclerotic lesion size and stability. Meanwhile, we conducted in vivo bone marrow transplantation to identify cellular-level components of the inflammatory response. Compared with mice deficient only in ApoE, the double-knockout mice had significantly smaller atherosclerotic lesions and displayed an attenuated inflammatory response. Moreover, miR-150 ablation promoted plaque stabilization via increases in smooth muscle cell and collagen content and decreased macrophage infiltration and lipid accumulation. The in vitro experiments indicated that an inflammatory response with miR-150 deficiency in atherosclerosis results directly from upregulated expression of the cytoskeletal pr...Continue Reading

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Citations

Aug 8, 2019·Cardiovascular Research·Francesca FasoloJason L Johnson
Jan 15, 2020·Open Medicine·Fu-Han GongYong-Sheng Yang
Mar 26, 2021·Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie·Andrey ElchaninovTimur Fatkhudinov
May 8, 2021·American Journal of Physiology. Heart and Circulatory Physiology·Ryan M SappSushant M Ranadive
Jun 12, 2021·Journal of Inflammation Research·Wencui WanYu Zhu

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